<form name="search" method="post">
<input type="hidden" name="proc" value="graph" />
<table width="100%" border="0">
<tr>
    <td align="right" width="50">Periode : </td>
    <td><input type="text" id="periode1" name="periode1" value="<?php echo time()?>" /> - <input id="periode2" name="periode2" type="text" value="<?php echo time()?>" /></td>
</tr>
</table>
</form>
<div align="center" id="graphContainer" style="margin-top:20px">
<img id="graph" />
</div>